#!/usr/bin/make -f
# -*- makefile -*-

# Uncomment this to turn on verbose mode.
# export DH_VERBOSE=1

# checking the release type, if $(RELEASE)=UNRELEASED we won't build
# the thunderbird-dbgsym package
include /usr/share/dpkg/pkg-info.mk
RELEASE := $(DEB_DISTRIBUTION)

ifneq (,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
	NUMJOBS = $(patsubst parallel=%,%,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
endif

THUNDERBIRD_VERSION=$(shell tail -1 comm/mail/config/version.txt)
DEB_AUTO_UPDATE_AUTOCONF=2.13

# build directory used for building the thunderbird-l10n files
THUNDERBIRD_L10N_BUILDDIR=debian/thunderbird-l10n-build

# ID of the l10n language packs from upstream, need to match the application.id
# in thunderbird-l10n/$LANG/manifest.json
export MOZ_LANGPACK_ID = $(shell grep MOZ_LANGPACK_EID comm/mail/locales/Makefile.in | cut -f2 -d @)

DPKG_EXPORT_BUILDFLAGS = 1
include /usr/share/dpkg/buildflags.mk
include /usr/share/dpkg/architecture.mk

# Use dpkg-buildflags to get build flags, but exclude -g, that is dealt with
# via configure options. Picked partially from FF.

dpkg_buildflags = $(and $(1),$(shell DEB_CFLAGS_MAINT_STRIP="-g" DEB_CXXFLAGS_MAINT_STRIP="-g" dpkg-buildflags --get $(1)))
lazy = $(eval $(1) = $$(if $$(___$(1)),,$$(eval ___$(1) := $(2)))$$(___$(1)))
$(call lazy,CFLAGS,$$(call dpkg_buildflags,CFLAGS))
$(call lazy,CXXFLAGS,$$(call dpkg_buildflags,CXXFLAGS))
$(call lazy,CPPFLAGS,$$(call dpkg_buildflags,CPPFLAGS))
$(call lazy,LDFLAGS,$$(call dpkg_buildflags,LDFLAGS))

# special CFLAGS for various platforms
ifeq ($(DEB_BUILD_ARCH),armel)
	CFLAGS += -D__ARM_PCS
	LDFLAGS += -Wl,-z,muldefs
endif

# Reduce memory usage of the linker at the expense of processing time
# This should help on lower-end architectures like arm and mips, which
# spend an immense amount of time swapping.
LDFLAGS += -Wl,--reduce-memory-overheads
LDFLAGS += -Wl,--no-keep-memory
LDFLAGS += -Wl,--as-needed

# Make the linker generate compressed debug sections. dh_strip would do
# the same anyways, but it allows elfhack to work in combination with
# unstripped binaries when they would normally be larger than 2GiB.
# Doing this only on 64bit architectures.
ifeq (64,$(DEB_BUILD_ARCH_BITS))
	LDFLAGS += -Wl,--compress-debug-sections=zlib
endif

# Add execution time and memory usage stats in the logs
LDFLAGS += -Wl,--stats

# Using the timestamp for MOZ_BUILD_DATE from the file './sourcestamp.txt'
# which is set by Mozilla while creating the release.
# This ensures we have a one-to-one date across the various package builds
# within Debian for one upstream version. This is important for user which
# are performing a dist-upgrade to a new release.
export MOZ_BUILD_DATE := ${shell head -n1 $(CURDIR)/sourcestamp.txt}
export MOZCONFIG=$(shell pwd)/mozconfig.thunderbird
export MOZILLA_OFFICIAL=1
export DEB_BUILD_GNU_TYPE
export DEB_HOST_GNU_TYPE
export DEB_BUILD_OPTIONS
# Some Debian build tools clear out some variables
export SHELL=/bin/bash
# Work around https://github.com/rust-lang/cargo/issues/7147
export CARGO_HOME=$(CURDIR)/debian/.cargo

%:
	dh $@

build:
	dh $@

override_dh_auto_clean:
	dh_auto_clean --builddirectory=obj-thunderbird
	find -type f -name "*.pyc" -exec rm {} \;
	rm -rf third_party/python/psutil/tmp
	rm -f configure old-configure js/src/configure js/src/old-configure mozconfig.*
	# needed for thunderbird-l10n
	rm -rf $(THUNDERBIRD_L10N_BUILDDIR)
	rm -rf $(CARGO_HOME)

override_dh_auto_configure:
	# run autoconf for all configure files
	if [ "Z$(DEB_AUTO_UPDATE_AUTOCONF)" != Z ] || [ ! -e $(CURDIR)/configure ]; then \
		cd $(CURDIR) && `which autoconf$(DEB_AUTO_UPDATE_AUTOCONF) || which autoconf`; fi
	if [ "Z$(DEB_AUTO_UPDATE_AUTOCONF)" != Z ] || [ ! -e $(CURDIR)/js/src/configure ]; then \
		cd $(CURDIR)/js/src && `which autoconf$(DEB_AUTO_UPDATE_AUTOCONF) || which autoconf`; fi
	# copy the mozconfig files
	cp debian/mozconfig.* .
	# Disable debug symbols when building on 32-bits machines, because
	# a) the rust compiler can't deal with it in the available address
	# space, and b) the linker can't deal with it in the available address
	# space either.
ifeq (32,$(DEB_BUILD_ARCH_BITS))
	echo 'ac_add_options --disable-debug-symbols' >> mozconfig.default
endif
	echo 'mk_add_options MOZ_OBJDIR=$(CURDIR)/obj-thunderbird' >> mozconfig.thunderbird
	echo 'ac_add_options --prefix=$(CURDIR)/debian/tmp/usr' >> mozconfig.default
	# configure the various build settings for thunderbird
	DIST= python3 ./mach -v configure

# Ignore autoreconf, there is nothing that could be reconfigured. It's all
# newly generated right before debhelper would call that target.
override_dh_autoreconf:

override_dh_auto_build:
	# building the stuff
	dh_auto_build --builddirectory=obj-thunderbird
	# build thunderbird-l10n
	mkdir -p $(THUNDERBIRD_L10N_BUILDDIR)
	cd $(CURDIR)/thunderbird-l10n ;\
	for XPI in *; do \
		locale=`basename $${XPI}` ;\
		USED_LANGPACK_ID=`grep langpack- $${XPI}/manifest.json | tr '"' ' ' | awk '{print $$3}' | cut -f2-3 -d @` ;\
		if [ "$${USED_LANGPACK_ID}" != "$${MOZ_LANGPACK_ID}" ]; then \
			echo "MOZ_LANGPACK_ID mismatch! '$${USED_LANGPACK_ID}' != '$${MOZ_LANGPACK_ID}'" ;\
			echo "thunderbird-l10n l10n source '$${XPI}' uses a different MOZ_LANGPACK_ID than defined in $(CURDIR)/comm/mail/locales/Makefile.in!";\
			exit 1 ;\
		else \
			$(CURDIR)/debian/xpi-pack.sh $${XPI} ../$(THUNDERBIRD_L10N_BUILDDIR)/langpack-$${locale}@$${MOZ_LANGPACK_ID}.xpi ;\
		fi \
	done

override_dh_auto_install:
ifneq (,$(filter mips,$(DEB_BUILD_ARCH)))
	sed -i '/"javascript.options.\(baselinejit\|ion\)"/s/true/false/' obj-thunderbird/dist/bin/greprefs.js
endif
	# install thunderbird into temp install folder
	python3 ./mach -v install
	# install, symlinking thunderbird-l10n packages
	cd $(CURDIR)/thunderbird-l10n ;\
	for LANG in *; do \
		locale=`basename $${LANG}` ;\
		lowercase_locale=`echo $${locale} | tr 'A-Z' 'a-z'` ;\
		echo "preparing and working on 'thunderbird-l10n-$${lowercase_locale}  (langpack-$${locale}@$${MOZ_LANGPACK_ID}.xpi)" ;\
		mkdir -p $(CURDIR)/debian/thunderbird-l10n-$${lowercase_locale}/usr/lib/thunderbird/extensions/ ;\
		install -D -m 644 ../$(THUNDERBIRD_L10N_BUILDDIR)/langpack-$${locale}@$${MOZ_LANGPACK_ID}.xpi $(CURDIR)/debian/thunderbird-l10n-$${lowercase_locale}/usr/lib/thunderbird/extensions/langpack-$${locale}@$${MOZ_LANGPACK_ID}.xpi ;\
	done
	dh_bash-completion

override_dh_install-arch:
	dh_install
	# apparmor profile installed by dh_install
	dh_apparmor --profile-name=usr.bin.thunderbird -pthunderbird

override_dh_install-indep:
	dh_install
	# remove executable rights on *.js, *.png, *.xul files
	find debian/thunderbird-l10n*/ -type f \( -name "*.dtd" -o -name "*.js" -o -name "*.png" -o -name "*.properties" -o -name "*.xul" \) -exec chmod 644 {} \;

override_dh_strip:
	if [ "$(RELEASE)" != "UNRELEASED" ]; then \
		dh_strip --automatic-dbgsym ;\
	else \
		dh_strip --no-automatic-dbgsym ;\
	fi

override_dh_shlibdeps:
	dh_shlibdeps -a -l $(CURDIR)/debian/tmp/usr/lib/thunderbird -- -xlibgtk2.0-0

override_dh_builddeb:
	# just build all packages if there is no 'UNRELEASED' within the changelog
	# found, otherwise skip the thunderbird-dbgsym package, it isn't there
	if [ "$(RELEASE)" != "UNRELEASED" ]; then \
		dh_builddeb ;\
	else \
		dh_builddeb -pthunderbird ;\
		dh_builddeb -plightning ;\
		for package in `grep -e \
			'Package: thunderbird-l10n\|Package: lightning-l10n' debian/control | awk '{print $$2;}'`; do \
			dh_builddeb -p$$package ;\
		done ;\
		sed -i '/thunderbird-dbgsym/d' debian/files ;\
	fi

override_dh_missing:
	dh_missing -X usr/bin/thunderbird \
	           -X usr/lib/thunderbird/Throbber-small.gif \
	           -X usr/lib/thunderbird/crashreporter \
	           -X usr/lib/thunderbird/minidump-analyzer \
	           -X usr/lib/thunderbird/pingsender

override_dh_dwz:
	# Don't use dwz for now, it fails with:
	# dwz: debian/thunderbird/usr/lib/thunderbird/libldap60.so: Found compressed .debug_info section, not attempting dwz compression
	# dwz: debian/thunderbird/usr/lib/thunderbird/libldif60.so: Found compressed .debug_info section, not attempting dwz compression
	# ...
	# dwz: debian/thunderbird/usr/lib/thunderbird/thunderbird-bin: Found compressed .debug_info section, not attempting dwz compression
	# dwz: Too few files for multifile optimization

.PHONY: build